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发明名称
Process for preparing a drilling mud additive and drilling muds containing the same
摘要
申请公布号
GB2170188(A)
申请公布日期
1986.07.30
申请号
GB19860001470
申请日期
1986.01.22
申请人
PETROLEO BRASILEIRO S A * PETROBRAS
发明人
JOAO TAVARES NEIVA * DE FIGUEIREDO;HOSAM AHMED ABADALLAH * ABDEL-REHIM;IELTON FREDERICO * DA PONTE;CARLOS CESAR * PEITER;FRANZ XAVER HORN * FILHO
分类号
C01G49/08;C09K8/03;(IPC1-7):C01G49/08
主分类号
C01G49/08
代理机构
代理人
主权项
地址
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